Author Question: Florence, who weighs 120. lbs, stands on a bathroom scale in an elevator. What will the scale read ... (Read 79 times)

tnt_battle · **on:** Jul 27, 2018

Florence, who weighs 120. lbs, stands on a bathroom scale in an elevator. What will the scale read when the elevator is accelerating downward at 2.0 m/s2?

A) 86. lb
B) 1.4 102 lb
C) 1.2 102 lb
D) 96. lb
E) 1.56 102 lb

Question 2

A submarine rests on the sea bottom. The normal force exerted upon the sub by the sea-floor is equal to

A) the buoyant force less 1 atmosphere acting on the sub.
B) the weight of the sub plus the weight of the displaced water.
C) the weight of the sub.
D) the weight of the sub less the weight of the displaced water.
E) the weight of the displaced water.